The process by which plants convert glucose into starch is:
A. Photosynthesis
B. Translocation
C. Respiration
D. Polymerization
Answer: Option D
Solution (By JKSSB Mock Tests)
Glucose produced during photosynthesis is often polymerized into starch (a polysaccharide) for storage in chloroplasts or amyloplasts. This is an anabolic polymerization process. Photosynthesis produces glucose, respiration breaks it down, translocation is transport of solutes. Starch is a reserve carbohydrate.
Explanation:
Folic acid prevents neural tube defects like spina bifida. It is recommended during early pregnancy. B₁₂ is for DNA synthesis, D for bone, K for clotting.
Explanation:
Gibberellins stimulate seed germination by activating synthesis of hydrolytic enzymes (amylase) that break down stored food reserves. They also promote stem elongation. Abscisic acid inhibits germination and promotes dormancy. Ethylene is for ripening, cytokinins for cell division. The GA:ABA ratio determines germination vs dormancy.
Explanation:
The common cold is a viral infectious disease of the upper respiratory tract. While many viruses can cause it, Rhinoviruses are the most common causative agents, responsible for 30-50% of cases. Coronaviruses and adenoviruses can also cause colds. Influenza virus causes the flu, which is a more severe respiratory illness.
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